Lock valve



June 9, 1925. 1,541,216

V. J. HENDRCKS 2 Sheets-Sheet 1 June`9, 1925. y K 1,541,216

' v. J. HENDRICKS LOCK VALVE Filed May 1"?, 1924 .2 sheets-sheet. 2

cealed within the valve casing.

Patented June 9, 1925.

UNiTED STATESA VIRGIL 'J'. HENDRICKS, OF MINNEAPOLIS,

KANSAS, ASSIGNOR TO GEORGE E. HEN- narcKs, oF sALINA, KANSAS.

LOCK VALVE.

Application filed May 17,

To all whom t may conce/m:

Be it known that I, VIRGILy J. HENDRICKS, a citizen of the United States, residing at Minneapolis, in the county of vOttawa and State of Kansas, have invented certain new and useful lmprovements in a Lock Valve, of which the following is a specification.

This invention relates to valves for liquids and gaf-ies, whereby tampering with the valve by unauthorized persons is substanially eliminated.

An importantobject of this invention is to provide a valve of the above character wherein all of the locking mechanism is con- Another object of this invention is to provide a valve of the above character which, when in a locked position, will allow the valve operating mechanism to be freely turned without injury to the valve or the locking mechanism.

A further object of this invention .is to provide a Valve of the above character in which the'lock mechanism and surrounding parts may be detached and replaced whenv they become worn.

Other objects and advantages ofthe invention will be apparent during the course of the following description. y

ln the accompanying drawings, forming a part of this specification, and in which like numerals are employed to designate like parts throughout the same, l

Figure 1 is a vertical sectional view through a valve constructed in accordance with my invention,

Figure 2 is a horizontal sectional view taken substantially on line 2 2 of Figure l,

Figure 3 is a horizontal sectional view taken substantially on line 3 3 of Figure l, I

Figure 4 is a fragmentary view partly in section and partly in elevation, illustrating a lock cylinder and lock cylinder connecting rod, and,

Figure is a horizontal sect-ional view taken substantially on line 4 4 .of Figure 1.

In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention, the numeral designates a valve casing having a valve seat 11 and the usual inlet and outlet ports 12 and 13 respectively.

The valve casing has a detachable par- 1924. Serial No. 714,053.

tition member .14 in which is screw threadably mounted a valve stem 15 carrying a swiveled head 16 at one end and a rectangular or other shaped head 17 at the other end thereof. Y

The detachable partition member 14 has a depending shoulder 13 engaging with a packing gland 19 on the upper face of the valve swivel 20 and a packing gland 21 mounted in its upper face engaging with washers 22 carried by the valve stem l5 to provide leak-proof joints when the valve 16 is in opened or closed position.

The detachable partition member 14 is held against movement by means of a locking pin 23. By releasing the pin 23 and applying a wrench or other implement to the partition member through the medium of thevdepressions 24 the same may be removed.

Mounted in the valve casing 10 above the partition member 1 4 .is a permutation lock cylinder 25. Contained within the lock cylinder 25 is a rotating barrel 26, the outer end of which has the usual key slot not shown and its inwardly projecting end having secured thereto a rock shaft 27 as shown in Figures 1, 3 and 4. As stated, this rock shaft 27 has connection aty one end with the rotating barrel 26 of the lock cylinder and at the other end is pivoted to the valve casing as at 2S.

Above the rock shaft 27 and connected thereto by connecting rods 29 are stop or lock plates 30 and 31 pivoted to the valve casing as at 32. The lock plates 30 and 31, owing to the fact that their edges contact, have their upper faces held in a substantially horizontal plane and are prevented from moving downwardly even though pressure is exerted from above. The lock plate 31 carriesa projection 33 which is adapted to contact with a pivoted spring pressed lever or latch34vwhen the stop or lock plates are .moved upwardly. This spring pressed lever or latch 34 primarily engages with internal ratchet teeth 35 carried by the internally screw threaded valve casing cover 36 through the opening 37 in the casing, to lock the cover against movement.

Mounted to reciprocate and rotate through the opening 38 in the cover, is a valve operating mechanism 39 `having mounted on its lower end a detachable socket 40 and on its upper end a handle 41. A jam nut 42 Til frictionally engages the valve operating mechanism 39 and retains the same in predetermined positions.

A cap 43 connected to the valve casing by a chain or other means has screw threaded engagement with a nipple 44- on the valve casing to prevent sediment and water from entering the permutation lock cylinder The operation of the device is as follows:

The valve operating mechanism 39 i's pulled upwardly until the socket engages with the cover 36 Ior until it is ont 'of the path 'of travel 'of the lock plates 3() and 3l.. A suitable key is then inserted in the lock barrel L6 and" turned, causing the rock shaft Q7 through the medium of connectingl rods 29 to raise the lool; lplates 30 and which swing upwardly in van arcuate path. This operation allows the valve operating mechanism 39 free downward movement to lengage with the head l' of the valve stem l5 to open or close the valve 1G. 'llo loel the valve against unaiiltlrorized use, raise the valve operating mechanism 39 untill iv is removed from the path of the lock plates 30 yand 3l which are moved downwardly tlnough the medium vof rock shaft 27 and connecting rods 29 until ythe upper faces of the `lock plates are on a horizontal plane.

It :is understood vthat the form of mv invention herewith shown and described is to he ytaken as a preferred example of the same, and that various changes in the shape, size :and arrangement of parts may be resorted to wit-hontdeparting from the spirit of my invention or the scope Aof the suhjoined claims.

Having described my invention` I claim:

l. A lock valve con-uprising a easing, a valve within said casing, detachable valve operating means, and lool( means adapted to be yinterposed between sa-id valve and valve operating means to prevent engagement of said operating ymeans with =the valve.

A flocking vail-ve comprising a casing., a valve with-in said easing, a detachable partition member supporting said valve, valve operating means above said ldetachable partition mem-ber, and means adapted to be interposed between said valve and valve @.p-

eraltingmeans Afor ipreventing the operation of vsaid valve.

A locking valve comprising a easing, valve within said casing, a detachable partition member snpporting said valve, de-

tachable valve operating means, movable stop plates adapted to be interposed between said. valve and said detachable. valve operating means, and means for moving said stop plates out of the path of the `detachalole valve `operating means.

A, locking valve comprising a casing, a cover for the casing, securing means for said cover, a valve within said casing, movable lock plates for said valve and means carried by one of said lock plates to operate said cover securing means to release .the same 'from the cover when the lool; .plates are moved to valve unlocking position.

.A locking valve comprising 'a easing, -a valve within saifd casing, .detachable valve operating aneans, pivoted stop plates adapt- .ed to .be interposed between the valve -a-nd said detael-ia-ble valve operating means, and va rock shaft to `move said pivoted Vstop pla-tes out of the path of the detachable valve `operating means.

(l. A flocking valve comprising .a casing, a valve within said casi-ng, shiflable valve operating means, 4movable stop plates .adapted to be in'-erposed between the valve and said shiftable `valve operating means, and .a roel; shaft having connection with the movable stop plates to shirft .'the same to and from their position between the valve and valve operating means.

7.. AV locking valve compri-sing a casing, a cover .for the easing., latch means for said eover, .a valve within said casing, a detachable partition member `supporting said valve, detachable valve operating means carried -by said cover, lpivotedstop .plates adapt- -edto be interposed between vsaid valve and said detachable valve operating' means,

`means `carried by one .of said pivoted stop plates -to foperate the latch means `for the cover w-lliensaid stop plates are shifted to their position between lie valve and valve operating means.; .and .a .rook shaft having connect-ion with Vsaid pivoted .stop plates to shift the same to and Ifrom their 4position between the valve and valve operating means.

In testimony whereof, I have affixed my sig-nature in the presence of two witnesses.

lV. '-C. NELSON, O. C. H-nNnnroKs. 

